MinutePhysics5.82 млн
Опубликовано 15 августа 2017, 15:00
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This video is about the differences between the corpses or final degenerate dense star forms that dead stars take: black holes, neutron stars, and white dwarfs. The main distinguishing features between them are the mass cutoffs (Chandrasekhar limit and Tolman-Oppenheimer-Volkoff Limit), the matter that makes them up (electrons, protons, neutrons, singularity?), and what holds them up against gravity – not thermal pressure from nuclear fusion like in a star like the sun, but electron or neutron degeneracy pressure (fermi pressure/pauli exclusion principle), and the strong nuclear force, and... nothing (in the case of a black hole).
REFERENCES:
Chandrasekhar Limit: en.wikipedia.org/wiki/Chandras...
Tolman-Oppenheimer-Volkoff Limit: en.wikipedia.org/wiki/Tolman&n...
Richard Pogge (Ohio State) on Neutron & White Dwarf Stars: astronomy.ohio-state.edu/~pogg...
Richard Pogge on Star Formation: astronomy.ohio-state.edu/~pogg...
Richard Pogge on Black Holes
Differences between galaxies and galaxy clusters: newscientist.com/article/dn200...
Introductory/review Paper on Neutron Stars: arxiv.org/pdf/1102.5735.pdf
White dwarf stars on hyperphysics: hyperphysics.phy-astr.gsu.edu/...
Brown Dwarf: en.wikipedia.org/wiki/Brown_dw...
Support MinutePhysics on Patreon! patreon.com/minutephysics
Link to Patreon Supporters: minutephysics.com/supporters
MinutePhysics is on twitter - @minutephysics
And facebook - facebook.com/minutephysics
And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
MinutePhysics & MinuteEarth are on Patreon: patreon.com/minutephysics and patreon.com/minuteearth
This video is about the differences between the corpses or final degenerate dense star forms that dead stars take: black holes, neutron stars, and white dwarfs. The main distinguishing features between them are the mass cutoffs (Chandrasekhar limit and Tolman-Oppenheimer-Volkoff Limit), the matter that makes them up (electrons, protons, neutrons, singularity?), and what holds them up against gravity – not thermal pressure from nuclear fusion like in a star like the sun, but electron or neutron degeneracy pressure (fermi pressure/pauli exclusion principle), and the strong nuclear force, and... nothing (in the case of a black hole).
REFERENCES:
Chandrasekhar Limit: en.wikipedia.org/wiki/Chandras...
Tolman-Oppenheimer-Volkoff Limit: en.wikipedia.org/wiki/Tolman&n...
Richard Pogge (Ohio State) on Neutron & White Dwarf Stars: astronomy.ohio-state.edu/~pogg...
Richard Pogge on Star Formation: astronomy.ohio-state.edu/~pogg...
Richard Pogge on Black Holes
Differences between galaxies and galaxy clusters: newscientist.com/article/dn200...
Introductory/review Paper on Neutron Stars: arxiv.org/pdf/1102.5735.pdf
White dwarf stars on hyperphysics: hyperphysics.phy-astr.gsu.edu/...
Brown Dwarf: en.wikipedia.org/wiki/Brown_dw...
Support MinutePhysics on Patreon! patreon.com/minutephysics
Link to Patreon Supporters: minutephysics.com/supporters
MinutePhysics is on twitter - @minutephysics
And facebook - facebook.com/minutephysics
And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
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